Search Results - "Chalifoux, A"

Synthesis of polyynes to model the sp-carbon allotrope carbyne by Chalifoux, Wesley A., Tykwinski, Rik R.

“…Carbyne is an allotrope of carbon composed of sp -hybridized carbon atoms. Although its formation in the laboratory is suggested, no well-defined sample is…”
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Bottom-Up Synthesis of Soluble and Narrow Graphene Nanoribbons Using Alkyne Benzannulations by Yang, Wenlong, Lucotti, Andrea, Tommasini, Matteo, Chalifoux, Wesley A

“…Since the discovery of graphene, there is an increasing amount of research devoted to graphene materials, namely, graphene nanoribbons (GNRs). The “top-down”…”
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The Synthesis of Non‐planar, Helically Coiled Graphene Nanoribbons by Chalifoux, Wesley A.

“…Twisted system: A photochemical cyclodehydrochlorination (CDHC) reaction is a relatively mild and efficient way to access highly contorted, helically coiled…”
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Highly Regioselective Domino Benzannulation Reaction of Buta‐1,3‐diynes To Construct Irregular Nanographenes by Yang, Wenlong, Bam, Radha, Catalano, Vincent J., Chalifoux, Wesley A.

“…The properties of nanographenes can be tuned by changing their shapes, therefore the development of new methods suitable for the synthesis of various…”
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Nanographene and Graphene Nanoribbon Synthesis via Alkyne Benzannulations by Senese, Amber D, Chalifoux, Wesley A

“…The extension of π-conjugation of polycyclic aromatic hydrocarbons (PAHs) via alkyne benzannulation reactions has become an increasingly utilized tool over the…”
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Pyrenes, Peropyrenes, and Teropyrenes: Synthesis, Structures, and Photophysical Properties by Yang, Wenlong, Monteiro, Jorge H. S. K., de Bettencourt-Dias, Ana, Catalano, Vincent J., Chalifoux, Wesley A.

“…The design of a relatively simple and efficient method to extend the π‐conjugation of readily available aromatics in one‐dimension is of significant value. In…”
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Synthesis, Structure, Photophysical Properties, and Photostability of Benzodipyrenes by Yang, Wenlong, Monteiro, Jorge H. S. K., de Bettencourt‐Dias, Ana, Catalano, Vincent J., Chalifoux, Wesley A.

“…This work explores the syntheses, structures, photophysical properties, and photostability of benzodipyrenes (BDPs). BDPs were synthesized through an…”
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Nonlinear Optical Properties of Polyynes: An Experimental Prediction for Carbyne by Agarwal, Nisha R, Lucotti, Andrea, Tommasini, Matteo, Chalifoux, Wesley A, Tykwinski, Rik R

“…We present the experimental determination of the vibrational contribution to molecular second hyperpolarizability (γvib) of very long polyynes that have been…”
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Evidence for Solution-State Nonlinearity of sp-Carbon Chains Based on IR and Raman Spectroscopy: Violation of Mutual Exclusion by Lucotti, Andrea, Tommasini, Matteo, Fazzi, Daniele, Del Zoppo, Mirella, Chalifoux, Wesley A, Ferguson, Michael J, Zerbi, Giuseppe, Tykwinski, Rik R

“…Adamantyl-end-capped polyynes with chains of 4, 6, 8, 10, 12, 16, and 20 sp-hybridized carbons (C4−C20) have been synthesized and their IR and Raman spectra…”
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Absolute Raman intensity measurements and determination of the vibrational second hyperpolarizability of adamantyl endcapped polyynes by Lucotti, A., Tommasini, M., Fazzi, D., Del Zoppo, M., Chalifoux, W. A., Tykwinski, R. R., Zerbi, G.

“…Linear sp‐carbon polyynes are ideal molecules for the direct investigation of the physical properties of one‐dimensional conjugated systems. Traditionally, the…”
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tert-Butyl-End-Capped Polyynes: Crystallographic Evidence of Reduced Bond-Length Alternation by Chalifoux, Wesley A, McDonald, Robert, Ferguson, Michael J, Tykwinski, Rik R

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Bent polyynes: ring geometry studied by Raman and IR spectroscopy by Lucotti, Andrea, Tommasini, Matteo, Chalifoux, Wesley A., Fazzi, Daniele, Zerbi, Giuseppe, Tykwinski, Rik R.

“…Infrared (IR) and Raman spectroscopy have been used to examine the vibrational characteristics of a series of three macrocyclic tetraynes in comparison with an…”
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Synthesis of P‑Containing Polycyclic Aromatic Hydrocarbons from Alkynyl-phosphonium Salts by Wang, Yijie, Su, Guangchen, Li, Mingsheng, Yao, Li, Chalifoux, Wesley A., Yang, Wenlong

“…This work presents a straightforward method for synthesizing a series of phosphorus-containing polycyclic aromatic hydrocarbons (P-PAHs) featuring an internal…”
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Correlation of probability scores of placenta accreta on magnetic resonance imaging with hemorrhagic morbidity by Lim, Grace, MD, Horowitz, Jeanne M., MD, Berggruen, Senta, MD, Ernst, Linda M., MD, Linn, Rebecca L., MD, Hewlett, Bradley, MD, Kim, Jennifer, MD, Chalifoux, Laurie A., MD, McCarthy, Robert J., PharmD

“…Abstract Study Objective and Design To evaluate the hypothesis that assigning grades to magnetic resonance imaging (MRI) findings of suspected placenta accreta…”
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One-Pot Domino Friedel–Crafts Acylation/Annulation between Alkynes and 2‑Methoxybenzoyl Chlorides: Synthesis of 2,3-Disubstituted Chromen-4-one Derivatives by Bam, Radha, Chalifoux, Wesley A

“…A highly regioselective synthesis of 2,3-disubstituted chromen-4-one derivatives is accomplished from readily available internal alkynes and 2-methoxybenzoyl…”
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Chiral Peropyrene: Synthesis, Structure, and Properties by Yang, Wenlong, Longhi, Giovanna, Abbate, Sergio, Lucotti, Andrea, Tommasini, Matteo, Villani, Claudio, Catalano, Vincent J, Lykhin, Aleksandr O, Varganov, Sergey A, Chalifoux, Wesley A

“…Herein we describe the synthesis, structure, and properties of chiral peropyrenes. Using p-terphenyl-2,2″,6,6″-tetrayne derivatives as precursors, chiral…”
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Anesthetic Management of External Cephalic Version by Chalifoux, Laurie A., MD, Sullivan, John T., MD, MBA

“…Breech presentation is common at term and its reduction through external cephalic version represents a noninvasive opportunity to avoid cesarean delivery and…”
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Dissymmetrical Chiral Peropyrenes: Synthesis via Iridium-Catalyzed C–H Activation/Alkyne Benzannulation and Study of Their Properties by George, Stephen P., Spengler, Jonas, Malone, Ryan J., Krzoska, James, Würthner, Frank, Chalifoux, Wesley A.

“…Dissymmetrical chiral peropyrenes with electron-rich and electron-deficient aryl substituents in the bay regions were synthesized via iridium-catalyzed C–H…”
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Synthesis and Properties of Achiral and Chiral Dipyrenoheteroles and Related Compounds by Malone, Ryan J., Spengler, Jonas, Carmichael, Rachael A., Ngo, Khoa, Würthner, Frank, Chalifoux, Wesley A.

“…Achiral and chiral isomers of dipyrenoheteroles were synthesized via alkyne benzannulation. The electronic properties of these compounds were examined using…”
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Chiral Teropyrenes: Synthesis, Structure, and Spectroscopic Studies by Bam, Radha, Yang, Wenlong, Longhi, Giovanna, Abbate, Sergio, Lucotti, Andrea, Tommasini, Matteo, Franzini, Roberta, Villani, Claudio, Catalano, Vincent J., Olmstead, Marilyn M., Chalifoux, Wesley A.

“…We present the inaugural synthesis of a chiral teropyrene achieved through a four‐fold alkyne benzannulation catalyzed by InCl3, resulting in good yields. The…”
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